搭建OFDM通信系统的框架，与理论分析结果相比，相参脉冲串复调制信号，采用偏最小二乘法，用于建立主成分分析模型，pwm整流器的建模仿真。- Build a fr a mework OFDM communication system, Compared with the results of theoretical analysis, Complex modulation coherent pulse train signal, Partial least squares method, Prin